9245749857 has 4 divisors (see below), whose sum is σ = 12327666480. Its totient is φ = 6163833236.

The previous prime is 9245749841. The next prime is 9245749861. The reversal of 9245749857 is 7589475429.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9245749857 - 2⁴ = 9245749841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9245749857.

It is not an unprimeable number, because it can be changed into a prime (9245749867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540958307 + ... + 1540958312.

It is an arithmetic number, because the mean of its divisors is an integer number (3081916620).

Almost surely, 2^9245749857 is an apocalyptic number.

It is an amenable number.

9245749857 is a deficient number, since it is larger than the sum of its proper divisors (3081916623).

9245749857 is a wasteful number, since it uses less digits than its factorization.

9245749857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081916622.

The product of its digits is 25401600, while the sum is 60.

The square root of 9245749857 is about 96154.8223283679. The cubic root of 9245749857 is about 2098.8466726002.

The spelling of 9245749857 in words is "nine billion, two hundred forty-five million, seven hundred forty-nine thousand, eight hundred fifty-seven".